Fits 351W only. This gear is cut the opposite direction of the stock gear. Make sure your gear is cut like the one in our photo, and has a .standard .531 diameter shaft hole like Prestolite and not .500 like Pertronix and others. Our gears do not have pre-drilled mounting holes purposely making it easier and safer for you to drill a 1/8" hole and install a hardened 3/4" long roll pin. Pre-drilled gears may cause serious problems when trying to install into a previously used hole causing misalignment. Simply drill the hole 90 degrees from the present hole. (an instruction sheet is included) Cast iron hardness RC-20 same as OEM. Duplicates the OEM reverse gear.
NOTE: If you need to fit a .500 shaft see our separate listing for this.
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Featured Product Yes UPC 709870984921 MPN 4921 brand AAA Marine Parts Wholesale Condition New